Home / 27,913.04-41,865.20-18,121.76

Finding the Fourth Proportional to 27,913.04, 41,865.20 and 18,121.76

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Solution

The fourth proportional to 27,913.04, 41,865.20 and 18,121.76 is: 27,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.04 : 41,865.20 = 18,121.76 : x
  2. Step 2: Convert to fraction form
    27,913.04/41,865.20 = 18,121.76/x
  3. Step 3: Cross multiply
    27,913.04x = 41,865.20 × 18,121.76
  4. Step 4: Simplify right side
    27,913.04x = 758,671,106.75
  5. Step 5: Solve for x
    x = 758,671,106.75/27,913.04
  6. Step 6: Final answer
    x = 27,179.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.